Just recently bought an 05 cavalier for a work vehicle with 110,000 miles on it. Just got to doing some maintenance on it this weekend and decided to take off the air box and snorkel to clean them up a bit when i noticed fuel in the snorkel. Then i looked where the snorkel was connected and there was a good couple of ounces of fuel there as well. Now, i've never taken apart a snorkel and found fuel in it before and was wondering why it might have found it's way in there so i coukd fix my issue. Thanks

Guessing PCV valve. If not a piston ring is bad.

Good luck....

This was my first guess also, going to have to tear off the valve cover to get to it from what i seen about this particular model. Usually it's just a little valve going into the valve cover but apparently not on here.